Doctor for a suction roll particularly in paper machines

Details Doctor for a suction roll particularly in paper machines Doctor for a suction roll particularly in paper machines

D - Textiles, Paper

21

G

D21G 3/00 (2006.01) D21F 3/10 (2006.01)

Patent

CA 2350952

The invention relates to a doctor for a suction roll particu-larly in a paper machine, which doctor (10) is intended to remove water from a suction roll (15). The doctor (10) includes a doctor slat (12) fitted against the surface of suction roll (15) to extend essentially over the entire width of suction roll (15), as well as the doctor slat (12)'s holder (20) and loading devices (19). In the direction of rotation of the suction roll (15), there is a doctor blade (13), which is as such known, with a blade holder (21) fitted to doctor (10) after doctor slat (12). Doctor blade (13) is arranged to remove the water lifted off suction roll (15) by doctor slat (12).

L'invention concerne un racle pour rouleau aspirant destiné en particulier à une machine à papier. Le racle (10) permet de retirer l'eau d'un rouleau aspirant (15). Il comprend : une première lame (12) portant contre la surface du rouleau aspirant (15), qui s'étend essentiellement sur toute la largeur de ce dernier; un premier support (20) de lame (12) ; et des éléments de pression (19). Une seconde lame (13) de racle est située dans le sens de rotation du rouleau aspirant (15). Elle est associée à un second support de lame (21) fixé au racle (10) derrière la première lame de racle (12). La seconde lame (13) est destinée à évacuer l'eau recueillie par la première lame (12) de racle.

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